Connection Diagram - HEIDENHAIN TNC 415 Technical Manual

5.1 Connection diagram

Under fault conditions the control-is-ready output should switch off the 24-volt supply. Because of
the enormous importance of this function this output is tested by the control every time the mains
power is switched on.
Basic circuit diagram:
Switch opens briefly when the control voltage
of each microprocessor is switched on
X41/34
"Control is
ready"
EMERGENCY
STOP
buttons
k1
Control
voltage
on
K1
This is merely a suggestion for switching. The machine manufacturer must ensure that all
necessary safety specifications are met.
01.98 TNC 407/TNC 415/TNC 425
Logic unit
X44/2 X44/1
24V not 24V
interruptible interruptible
k1
+ -
24 V
PLC
5 EMERGENCY STOP-routine
X42/4
"Control ready"
feedback
4-121